Malware Analysis Report

2024-10-19 09:23

Sample ID 240612-cg9ptsydkb
Target b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe
SHA256 b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab

Threat Level: Known bad

The file b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Detects executables referencing many file transfer clients. Observed in information stealers

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Detects executables referencing Windows vault credential objects. Observed in infostealers

Detect packed .NET executables. Mostly AgentTeslaV4.

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Detects executables referencing many email and collaboration clients. Observed in information stealers

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 02:04

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 02:04

Reported

2024-06-12 02:06

Platform

win7-20240611-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe"

Signatures

Uses the VBS compiler for execution

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2020 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2804 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2252 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2020 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe

"C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

N/A

Files

memory/2020-0-0x00000000742BE000-0x00000000742BF000-memory.dmp

memory/2020-1-0x00000000010B0000-0x0000000001156000-memory.dmp

memory/2020-2-0x00000000742B0000-0x000000007499E000-memory.dmp

memory/2020-3-0x0000000000940000-0x0000000000956000-memory.dmp

memory/2020-4-0x00000000009C0000-0x00000000009CE000-memory.dmp

memory/2020-5-0x00000000009D0000-0x00000000009E0000-memory.dmp

memory/2020-6-0x0000000004E60000-0x0000000004EE2000-memory.dmp

memory/2020-7-0x00000000742B0000-0x000000007499E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 02:04

Reported

2024-06-12 02:06

Platform

win10v2004-20240611-en

Max time kernel

95s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4.

Description Indicator Process Target
N/A N/A N/A N/A

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Description Indicator Process Target
N/A N/A N/A N/A

Detects executables referencing Windows vault credential objects. Observed in infostealers

Description Indicator Process Target
N/A N/A N/A N/A

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Description Indicator Process Target
N/A N/A N/A N/A

Detects executables referencing many email and collaboration clients. Observed in information stealers

Description Indicator Process Target
N/A N/A N/A N/A

Detects executables referencing many file transfer clients. Observed in information stealers

Description Indicator Process Target
N/A N/A N/A N/A

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4808 set thread context of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4808 wrote to memory of 3100 N/A C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe

"C:\Users\Admin\AppData\Local\Temp\b676c17a455c3cbc95167c0e80d07d7364ff8894134edfaa020627ccc5469fab.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 us2.smtp.mailhostbox.com udp
US 208.91.198.143:587 us2.smtp.mailhostbox.com tcp
US 8.8.8.8:53 143.198.91.208.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4808-0-0x00007FFA0D7F0000-0x00007FFA0D9E5000-memory.dmp

memory/4808-1-0x0000000000650000-0x00000000006F6000-memory.dmp

memory/4808-2-0x00000000056E0000-0x0000000005C84000-memory.dmp

memory/4808-3-0x0000000005130000-0x00000000051C2000-memory.dmp

memory/4808-4-0x00007FFA0D7F0000-0x00007FFA0D9E5000-memory.dmp

memory/4808-5-0x0000000005100000-0x000000000510A000-memory.dmp

memory/4808-6-0x0000000005390000-0x00000000053A6000-memory.dmp

memory/4808-7-0x00000000053D0000-0x00000000053DE000-memory.dmp

memory/4808-8-0x0000000006390000-0x00000000063A0000-memory.dmp

memory/4808-9-0x00000000063F0000-0x0000000006472000-memory.dmp

memory/4808-10-0x0000000008E50000-0x0000000008EEC000-memory.dmp

memory/3100-11-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3100-13-0x00007FFA0D7F0000-0x00007FFA0D9E5000-memory.dmp

memory/3100-14-0x00007FFA0D7F0000-0x00007FFA0D9E5000-memory.dmp

memory/3100-15-0x0000000005470000-0x00000000054D6000-memory.dmp

memory/3100-16-0x0000000006220000-0x0000000006270000-memory.dmp

memory/3100-17-0x00007FFA0D7F0000-0x00007FFA0D9E5000-memory.dmp